For more information about how to choose a tier, please visit the “What Redis Cache offering and size should I use” section of the Azure Redis Cache FAQ documentation webpage.

Effective December 1, 2015, the Premium tier will be generally available. During this time, as part of a special promotion, you will be receiving Standard-tier pricing using Standard-tier meters. Effective January 1, 2016, you will be charged Premium-tier pricing using new Premium-tier meters. In addition to the change in pricing, the Premium meters will have new GUIDs, and any current reporting dependencies will need to incorporate the new mapping.